Portable air moving device with air stream intensity adjustment

ABSTRACT

A portable air moving device capable of generating an adjustable intensity air flow is provided. The device includes a blower assembly and an intensity adjustment mechanism located within a housing and provides for adjustment of the air flow pattern generated by the device. In one embodiment, the intensity adjustment mechanism includes panels that can be manipulated to adjust the air width of the exhaust air stream. The air width may be increased to decrease the intensity of the air flow and/or the air width may be decreased to increase the intensity of the air flow.

CROSS-REFERENCE APPLICATIONS

This application claims priority to provisional patent application 60/741,675 filed Dec. 2, 2005.

TECHNOLOGY FIELD

The invention is related to portable air moving devices. More specifically the invention relates to portable personal heating and cooling devices.

BACKGROUND

Portable air moving devices are known and commonly utilized in personal cooling and personal heating applications. The ability to transport such devices to a location near the user has certain advantages over central heating and cooling systems. One of the advantages of such personal air moving devices is that the amount of energy required to cool or warm an individual is less than the energy requirement to cool or heat an entire room or large space. This signifies that an individual can maintain a personal comfort level within a larger area without the energy and expense of increasing the heating or cooling of the entire area.

Another advantage of such devices is the ability to more precisely control the cooling or heating in conformance to the users desires. For example, an individual within a given area may desire to be cooler or warmer than another person in the same area. Personal air moving devices allow a given individual greater control over his immediate environment without disrupting the comfort level of another person in the vicinity.

Although conventional personal air moving devices have advantages they also have several disadvantages. The air flow pattern emitted from such conventional devices is non-adjustable. In effect, the air flow pattern is either a substantially straight vector having a relatively high intensity air flow that projects directly into the room or a diffuse air flow pattern having a relatively low intensity air flow that does not project into the room as readily. The intensity of the air flow produced by both of these air flow patterns may be desirable at different times and for different reasons depending on the application and the user.

One attempt to overcome the lack of intensity adjustment of the air flow on conventional portable air moving devices is the use of oscillation mechanisms. One problem with such oscillation mechanism is the intermittent effects experienced by the user. When the oscillation movement directs the flow of air away from the user the desired effects of heating or cooling on the user are not perceptible. When the oscillation movement returns the flow of air to directly impinge the user, the heating or cooling effects of the device may be too intense.

Another problem regarding oscillation of a flow of air is its disruptive characteristics. Not only will the intermittent impingement on the user be disruptive the oscillating flow of air may be disruptive to others in the vicinity of the device. The oscillating movement of the air flow may also dislodge loose objects, such as paper. This may not be desirable as these objects can be dislodged from their intended place. Further, this also means that any dust, pollen or dander within the flow of the oscillating air stream will be disturbed and airborne. This dust and debris can be detrimental to, for example, respiratory conditions.

SUMMARY

In light of the aforementioned problems there is a need for a portable air moving device having a variable intensity air flow. The air flow emitted from the device can be adjusted between a narrow relatively high intensity air flow pattern and a wide relatively low intensity air flow pattern. A single, portable air moving device having an intensity adjustment mechanism for adjustment between a narrow high intensity air flow pattern and wide low intensity air flow pattern, and various point in between, allows a user to vary the air flow intensity to more precisely control the cooling or heating effect required by a particular application and/or desired by a particular user.

The narrow air flow pattern yields a substantially straight vector air flow having a relatively high air flow intensity thereby allowing the heating or cooling effects of the exhaust air stream exiting the device to penetrate into an area. This in turn allows the user to experience a more intense cooling or heating sensation, if desired. This also allows the user to be located at a distance from the air moving device and still experience the effects of the air flow.

The wider air flow pattern yields a disperse air flow having a relatively low air flow intensity thereby allowing the user to reduce the intensity of the air flow and its effects. This is especially useful when the user is located near the air moving device, for example in a work area such as, for example, a workbench or desk. The ability to adjust or vary the intensity of the air flow increases the flexibility of the device afforded to the user.

An air intensity adjustment mechanism is provided to allow the adjustment of the air width “AW” of the exhaust air stream exiting the portable air moving device. The air flow intensity of the exhaust air stream may be increased by decreasing the air width “AW,” and the air flow intensity of the exhaust air stream may be decreased by increasing the air width “AW”. Movable panels may be used to allow the user to adjust or vary the air width “AW” at the air outlet between a minimum air width “AW_(min)” and a maximum air width “AW_(max)”. Setting the air intensity adjustment mechanism to a minimum air width “AW_(min)” provides a relatively high intensity exhaust air stream, and setting the air intensity adjustment mechanism to a maximum air width “AW_(max)” provides a relatively low intensity exhaust air stream exiting the device. This may also result in adjustment of the angle at which the air flow exits the device.

The portable air moving device with adjustable intensity air flow decreases the cost of the device when compared to a conventional portable air moving device with an oscillation mechanism. Oscillation mechanisms use motors, gears, links and the like to achieve functionality. The portable air moving device with adjustable intensity air flow does not require such components to function. The absence of such components will reduce the manufacturing cost and the final cost to the users.

Additional features and advantages of the invention will be made apparent from the following detailed description of illustrative embodiments that proceeds with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is best understood from the following detailed description when read in connection with the accompanying drawing. It is emphasized that, according to common practice, the various features of the drawing are not to scale. On the contrary, the dimensions of the various features are arbitrarily expanded or reduced for clarity. Included in the drawing are the following Figures:

FIG. 1A is a perspective view of an embodiment of a portable air moving device with adjustable intensity air flow;

FIG. 1B is a perspective view of the exemplary embodiment of FIG. 1 showing an alternate air flow pattern;

FIG. 2 is an exploded perspective view of another embodiment of a portable air moving device with adjustable intensity air flow;

FIG. 3 is a top view of an exemplary embodiment showing a comparison of the air flow patterns;

FIGS. 4A and 4B are horizontal cross sections through another exemplary embodiment of a portable air moving device with adjustable intensity air flow;

FIGS. 5A, 5B and 5C are horizontal cross sections of yet another embodiment of a portable air moving device with adjustable intensity air flow;

FIG. 6 shows yet another exemplary embodiment illustrating other features of a portable air moving device with adjustable intensity air flow;

FIG. 7 shows another embodiment of an exemplary air intensity adjustment mechanism that may be used with a portable air moving device with adjustable intensity air flow;

FIG. 8 shows another embodiment of an exemplary air intensity adjustment mechanism;

FIG. 9 shows another embodiment of an exemplary air intensity adjustment mechanism;

FIG. 10 shows another embodiment of an exemplary air intensity adjustment mechanism;

FIGS. 11A and 11B show yet another embodiment of an exemplary air intensity adjustment mechanism;

FIGS. 12A, 12B and 12C are horizontal cross sections through another exemplary embodiment of a portable air moving device with adjustable intensity air flow;

FIGS. 13A, 13B, 13C and 13D are views of yet another exemplary embodiment of a portable air moving device with adjustable intensity air flow;

FIGS. 14A and 14B are horizontal cross sections through yet another exemplary embodiment of a portable air moving device with adjustable intensity air flow; and

FIGS. 15A, 15B, 15C and 15D are perspective views of another embodiment of a portable air moving device with adjustable intensity air flow.

DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

The following is a description of several exemplary embodiments of portable air moving devices with adjustable intensity air flow. The air flow emitted from the exemplary devices can be adjusted between a substantially narrow and straight vector air flow having a relatively high intensity and a substantially wide divergent air flow having a relatively low intensity. Also, a variety of other air flow patterns having an air flow intensity between a high and a low air flow intensity may be provided. The adjustability of the air flow promotes a variable intensity experienced by the user not encountered in conventional portable air moving devices.

The narrow and substantially straight vector flow having a relatively high air flow intensity enhances the ability of the heating or cooling effects of the air flow to efficiently penetrate an area such as, for example, a space or room. This “ambient penetration” in turn allows the user to experience a more intense cooling or heating sensation. The “ambient penetration” afforded by the device also allows the user to be located at a greater distance from the air moving device while still experiencing the effects of the air flow.

The wider divergent air flow allows the user to lessen the intensity of the effects of the air flow experienced by the user. The lessening of intensity is useful when the user is located near the air moving device. This feature is useful in a work area such as, for example, a workbench, table or desk.

The flexibility to adjust the air flow from a straight vector to a wide divergent air pattern, or anywhere in between, increases the application and use flexibility afforded the user by the portable air moving device. The use of portable air moving device with adjustable intensity air flow also decreases the cost of the device when compared to conventional portable air moving devices using, for example, oscillation mechanisms. Oscillation mechanisms used on conventional portable air moving devices typically include at least of one of two major components: 1) an additional electric motor or 2) a transmission on the impeller motor. Both of these components in addition to gears, bearings, linkages and the like add significant cost to the final product. By comparison, the use of the adjustable intensity air flow mechanism in accordance with embodiments of the present invention provide a simple and low cost alternative to such components.

FIG. 1A is a perspective view of an embodiment of portable air moving device 100 with adjustable intensity air flow. As shown, housing 102 defines interior space 103. Air inlet 120 allows ambient air to enter interior space 103 and air outlet 108 allows exhaust air stream 180 to exit interior space 103.

Disposed within interior space 103 is blower assembly 130 and intensity adjustment mechanism 150. Blower assembly 130 draws ambient air into interior space 103 via air inlet 120 and subsequently generates exhaust air stream 180. Exhaust air stream 180 passes through intensity adjustment mechanism 150 and exits housing 102 via air outlet 108.

Slide 152 may be used to adjust the intensity of exhaust air stream 180. As shown in FIG. 1A, exhaust air stream 180 exits air outlet 108 as a substantially straight vector flow of air. The width of exhaust air stream 180 as it exits air outlet 108 is represented by air width “AW1”. The length of exhaust air stream 180 as it exits air outlet 108 is represented by air length “AL”.

FIG. 1B is a perspective view of portable air moving device 100 with adjustable intensity air flow, similar to FIG. 1A. Portable air moving device 100 with adjustable intensity air flow of FIG. 1B shows an alternate air flow pattern and intensity when compared to FIG. 1A. As shown, slide 152 has been moved and intensity adjustment mechanism 150 has adjusted the air pattern and intensity of exhaust air stream 180 when compared to FIG. 1A. As shown in FIG. 1B, exhaust sir stream 180 exits air outlet 108 as a wide and divergent air flow pattern having a relatively low air flow intensity. The width of exhaust air stream 180 as it exits air outlet 108 is represented by air width “AW2”. The length of exhaust air stream 180 as it exits air outlet 108 is represented by air length “AL”.

The air width “AW” at the air outlet may be adjusted between a minimum air width “AW_(min)” and a maximum air width “AW_(max)”. Setting the air intensity adjustment mechanism to a minimum air width “AW_(min)” provides a relatively high intensity exhaust air stream exiting the device. Setting the air intensity adjustment mechanism to a maximum air width “AW_(max)” provides a relatively low intensity exhaust air stream exiting the device. Preferably, the air width “AW” may also be set various positions between the minimum air width “AW_(min)” and the maximum air width “AW_(max)” and results in air flow patterns having intensity characteristics between the high and low intensity air flow patterns.

As can be seen the air width “AW1” of FIG. 1A is less than air width “AW2” of FIG. 1B. The utilization of intensity adjustment mechanism 150 to adjust air width “AW” of exhaust air stream 180 between air width “AW1” and “AW2” yields the ability to vary the intensity of exhaust air stream 180 experienced by the user. The air flow characteristics of exhaust air stream 180 may be stated: Q/A=V

Where: Q is the volume (cubic feet per minute) of air generated by blower assembly 130. V is the velocity (feet per minute) of exhaust air stream 180. A is the area of exhaust air stream 180 as it exits housing 102. Area A can also be expressed: A=AL×AW

The air flow characteristics of exhaust air stream 180 therefore may be stated: Q/(AL×AW)=V

The volume of air flow Q generated by blower assembly 130 is fixed in that Q is limited by the size and power of blower assembly 130. For example, the desire to maintain a low power motor (not shown) used in blower assembly 130 will limit the volume of air flow Q generated. A lower Q requires less power to produce than a higher Q. AL is also fixed in the present embodiment by the physical size of portable air moving device with adjustable intensity air flow 100. Therefore, it remains that AW can be adjusted to achieve the desired velocity V and intensity characteristics of exhaust air stream 180.

The following can be deduced from the mathematical statement: Q/(AL×AW)=V

-   -   1. As AW decreases, in effect trends toward air width “AW₁” as         opposed to air width “AW₂”, the velocity V and intensity         characteristics of exhaust air stream 180 will generally         increase (see e.g., FIG. 1A).     -   2. As air width AW increases, in effect trends toward air width         “AW₂” as opposed to air width “AW₂”, the velocity V and         intensity characteristics of exhaust air stream 180 will         decrease (see e.g., FIG. 1B).

Although the intensity adjustment is shown in a horizontal orientation (i. e., an adjustable width), the invention is not so limited. It is contemplated that the intensity adjustment may be effected in a vertical orientation as well (i.e., an adjustable height). It is further contemplated that the adjustment of the exit width of air stream 180 can be oriented at any angle without departing from the spirit of the invention. Although the exemplary embodiments are shown having a vertically oriented housing, the invention is not so limited. For example, horizontally oriented housings are also contemplated by the invention.

Also shown in both FIGS. 1A and 1B is control 170. Control 170 is used to control a function of portable air moving device 100 with adjustable intensity air flow, such as for example, power on, power off and the like.

FIG. 2 is an exploded perspective view of portable air moving device 100 with adjustable intensity air flow. Portable air moving device 100 with adjustable intensity air flow includes housing 102. As shown, housing 102 is constructed in two parts: half 102 a and half 102 b. Half 102 a and half 102 b can be assembled together using conventional methods, such as for example, screws, snaps, adhesives, ultrasonic welding and the like. Housing 102 defines interior space 103.

Air outlet 108, in this example, is located partially in half 102 a and half 102 b. Preferably, outlet grill 110 is located proximate air outlet 108. Outlet grill 110 may be designed to protect interior space 103 from the penetration of foreign objects. Outlet grill 110 is preferably designed to minimize it's impedance to exhaust air stream 180 exiting air outlet 108. Outlet grill 110 may be attached to housing 102 through assembly devices, (not shown), such as for example; screws, adhesives or snaps. It is also contemplated that outlet grill 110 may be unitary with another component of portable air moving device 100 with adjustable intensity air flow, such as for example, housing 102.

Air inlet 120, as shown is located in half 102 a of housing 102. Air inlet 120 may be designed to minimize its impedance to the flow of air into interior space 103 while at the same time portable air moving device 100 with adjustable intensity air flow from the penetration of foreign objects into interior space 103. As shown, intake grill 111 may be a unitary part of housing 102, specifically half 102 a, the invention however is not so limited.

Disposed within interior space 103 is blower assembly 130. As shown, blower assembly 130 includes cross-flow air impeller 132 and motor 134. Cross-flow air impeller 132 may be connected to motor 134 via motor shaft 135. Cross-flow air impeller 132 may be supported by upper frame 131 and bearing 133. Motor 134 may be connected to lower frame 139 via motor bracket 136. In this example, air cut-off 137 and air guide 138 are disposed between upper frame 131 and lower frame 139. Air cut-off 137 and air guide 138 may be used to structurally support upper frame 131 and lower frame 139 relative to each other. Motor 134 rotates cross-flow air impeller 132 about axis of rotation Z. As shown in the present embodiment, axis of rotation Z has a substantially vertical orientation.

It is contemplated that portions of blower assembly 130, such as for example, upper frame 131, lower frame 139, air cut-off 137 and/or air guide 138 may be unitary in construction with other parts of portable air moving device 100 with adjustable intensity air flow, such as for example, housing 102.

Preferably motor 134 will be a ventilated type electric motor. A ventilated motor allows air to enter motor 134 and efficiently cool motor 134 when in use. The cooling of motor 134 will allow a reduction of materials and reduce the cost of motor 134, which in turn will reduce the overall cost of portable air moving device 100 with adjustable intensity air flow. It is also contemplated that motor 134 of blower assembly 130 may be an electric motor using AC current or DC current.

Although blower assembly 130 is shown utilizing cross-flow air impeller 132 the invention is not so limited. It is contemplated that blower assembly 130 may utilize, for example, centrifugal impellers, axial impellers, and the associated structure to accommodate such.

Also disposed within interior space 103 is intensity adjustment mechanism 150. In the exemplary embodiment shown in FIG. 2, intensity adjustment mechanism 150 includes slide 152, movable panels 154, side frame 156 a, side frame 156 b, top frame 157, bottom frame 158, link 151 and link 153. As shown, side frame 156 a, side frame 156 b, top frame 157 and bottom frame 158 are assembled to support movable panels 154. Although side frame 156 a, side frame 156 b, top frame 157 and bottom frame 158 are shown as separate parts it is contemplated that they may be unitary with one another or incorporated and unitary with other parts of portable air moving device with adjustable intensity air flow 100, such as for example, housing 102.

As shown, slide 152 is connected to link 151 and link 153, which in turn are connected to movable panels 154. When slide 152 is moved, the subsequent movement of link 151 and link 153 in turn move one or more of movable panels 154. By this manner, the width of exhaust air stream 180 is changed, (see FIGS. 1A and 1B).

Also shown disposed within interior space 103 is electric heating element 190. As shown, electric heating element 190 is located between blower assembly 130 and intensity adjustment mechanism 150. Electric heating element 190 may be utilized to heat the air stream generated by blower assembly 130 prior to exiting housing 102. As such, exhaust air stream 180, (see FIGS. 1A and 1B) exits housing 102 as a heated exhaust air stream.

Although many different types of electric heating element 190 may be used, such as for example; hot wire or calrod radiator, the non-limiting example shown utilizes Positive Temperature Coefficient (PTC) technology for heating element 190. The use of a PTC heating element 190 assures a self-regulating low surface temperature of approximately 450 degrees Fahrenheit (232 degrees Celsius).

Although the exploded perspective view of portable air moving device with adjustable intensity air flow 100 of FIG. 2 shows electric heating element 190, the invention is not so limited. It is contemplated that portable air moving device 100 with adjustable intensity air flow may be constructed without electric heating element 190 without departing from the invention.

Control assembly 170 is used to control a function of portable air moving device 100 with adjustable intensity air flow, such as for example, power on/off power settings for electric heating element 190, and the like. As shown, control assembly 170 may include, switch knob 172, buttons 173 and control enclosure 174. Although not shown, control assembly 170 may also include for example, tip over switches, power control boards, thermostats, LED indicators and the like. Alternatively, a remote control unit (not shown) may accomplish the control of portable air moving device with adjustable intensity air flow 100 in conjunction with, and/or as a replacement for control assembly 170.

Portable air moving device 100 with adjustable intensity air flow may be constructed with material such as polymers, sealed motors, sealed switches, rain sensors and the like to optimize a weather proof construction. This would facilitate the use of portable air moving device 100 with adjustable intensity air flow in areas that might be exposed to varying weather conditions.

FIG. 3 is a top view of portable air moving device 100 with adjustable intensity air flow showing a comparison of the air flow patterns defined by angle φ₁ and angle φ₂. As shown, intensity adjustment mechanism 150 disposed inside housing 102 can be adjusted to provide exhaust air stream 180 within minimum width limits 312 and 314. In the embodiment of FIG. 3, this setting would correspond to the minimum air width “AW_(min)” at the exit of the device housing 102. Intensity adjustment mechanism 150 can also be adjusted to provide exhaust air stream 180 within maximum width limits 322 and 324. This setting would correspond to the maximum air width “AW_(max)” at the exit of the device housing 102 for the embodiment shown in FIG. 3.

As shown, angle φ₁ defines the inclusive angle between minimum width limits 312 and 314 while angle φ₂ defines the inclusive angle between maximum width limits 322 and 324. Preferably, intensity adjustment mechanism 150 will allow the width limits of exhaust air stream 180 to be adjusted anywhere between angle φ₁ and angle φ₂.

In one embodiment, the inclusive angle defined by angle φ₁ will permit minimum width limits 312 and 314 to be about parallel to one another. Preferably angle φ₁ may be approximately zero, and more preferably, angle φ₁ may be an angle between −5 degrees and +5 degrees. Angle φ₂ will allow the maximum width limits 322 and 324 to diverge from parallel as shown. In one embodiment angle φ₂ may be an angle greater than about 30°. In another embodiment angle φ₂ may be between about 20° degrees and about 120°. Angle φ₁ produces a relatively high intensity air flow and will thereby allow exhaust air stream 180 to penetrate an ambient and travel at a greater velocity “V” when compared to the velocity and penetration when the width limits of exhaust air stream 180 are adjusted to angle φ₂, which produces a relatively low intensity air flow.

The ability to adjust the inclusive angle anywhere between angle φ₁ and angle φ₂ increases the functional choices available to the user. Increasing the functional choices of portable air moving device 100 with adjustable intensity air flow augments its value to the end user compared to a conventional portable air moving device having a fixed or static air flow intensity. In turn, the marketable value of portable air moving device with adjustable intensity air flow 100 is increased for the manufacturer.

In another embodiment, an oscillation mechanism (not shown) may be used to automatically cycle between angle φ₁ and angle φ₂. The oscillation mechanism may include gears, pinions, links and the like.

FIGS. 4A and 4B are horizontal cross sectional views through another exemplary embodiment of portable air moving device 400 with adjustable intensity air flow. As shown, portable air moving device 400 with adjustable intensity air flow includes housing 402 defining interior space 403. Disposed within interior space 403 are blower assembly 430, electric heating element 490 and intensity adjustment mechanism 450. Air inlet 420 in this exemplary embodiment is located in housing 402 opposite air outlet 408. Outlet grill 410 is located proximate air outlet 408.

Referring now to FIG. 4A, blower assembly 430 includes impeller 432 and blower scroll 438. The rotation of impeller 432 induces ambient air 182 to enter interior space 403 and subsequently to be drawn into blower scroll casing 438. Impeller 432 converts ambient air flow 182 into exhaust air stream 180. Exhaust air stream 180 exits blower scroll casing 438 and passes through electric heating element 490 and subsequently passes through intensity adjustment mechanism 450, air outlet 408 and outlet grill 410.

Intensity adjustment mechanism 450 includes movable panels 454 a, 454 b, 454 c, side frame 456 a, side frame 456 b and pivot points 455. As shown in FIG. 4A, movable panels 454 a, 454 b, 454 c are substantially parallel to one another. The substantially parallel alignment of movable panels 454 a, 454 b, 454 c limit air width “AW1” of exhaust air steam 180 as it exits housing 402. Exhaust air stream 180 exits housing 402 as a substantially straight vector air flow with velocity V₁ and intensity characteristics as shown, for example, in FIG. 1A.

FIG. 4B is structurally similar to FIG. 4A except movable panels 454 a, 454 b, 454 c have moved and are shown as non-parallel and divergent relative to one another. The divergent alignment of movable panels 454 a, 454 b, 454 c increase the width of exhaust air steam 180 as it exits housing 402 to air width “AW2” as compared to air width “AW1” of FIG. 4A. Exhaust air stream 180 exits housing 402 as a divergent air flow with velocity V₂ and intensity characteristics similar to those shown, for example, in FIG. 1B. As can be appreciated, V₁ is greater than V₂.

The movement of intensity adjustment mechanism 450 may be effected by a rotation of movable panels 454 a, 454 c about pivot points 455. In the exemplary embodiment shown in FIGS. 4A and 4B, movable panels 454 a, 454 c rotate in a divergent fashion with respect to each other, while movable panel 454 b remains stationary. When movable panels 454 a, 454 c are adjusted, as shown in FIG. 4B, exhaust air stream 180 is confined to the area between side frame 456 a and side frame 456 b.

Although the exemplary embodiment of FIGS. 4A and 4B is shown using three movable panels 454 a, 454 b and 454 c the invention is not so limited. It is contemplated that a combination of two or more movable panels may be used without departing from the spirit of the invention.

Outlet grill 410 of the exemplary embodiment is shown as constructed of perforated metal, however the invention is not so limited. It is contemplated that other materials, such as for example, polymer could be used without departing from the spirit of the invention. It is also contemplated that other structures may be used, such as for example, expanded metal, horizontal slats, vertical slats and the like without deviating from the invention.

FIGS. 5A, 5B and 5C are alternate horizontal cross sectional views through another exemplary embodiment of portable air moving device 500 with adjustable intensity air flow. As shown, portable air moving device 500 with adjustable intensity air flow includes housing 502 defining interior space 503. Disposed within interior space 503 is blower assembly 530 and intensity adjustment mechanism 550. Air inlet 520 in this exemplary embodiment is located in a side wall of housing 502. Outlet grill 510 is located proximate air outlet 508.

Referring now to FIG. 5A, blower assembly 530 includes impeller 532, air guide 538 and air cut-off 537. The rotation of impeller 532 induces ambient air 182 to enter interior space 503 and subsequently be drawn through impeller 532. Impeller 532 converts ambient air flow 182 into exhaust air stream 180. Exhaust air stream 180 exits blower assembly 530 and passes through intensity adjustment mechanism 550 and exits housing 502 via air outlet 508 and outlet grill 510.

Intensity adjustment mechanism 550 includes movable panels 554 a, 554 b, 554 c, 554 d and pivot point 555. As shown in FIG. 5A, movable panels 554 a, 554 b, 554 c and 554 d are substantially parallel to one another. The substantially parallel alignment of movable panels 554 a, 554 b, 554 c and 554 d limit air width “AW₁” of exhaust air steam 180 as it exits housing 502. As can be appreciated, air width “AW₁” is substantially equal to the entry width “EW” of exhaust air stream 180 as it enters intensity adjustment mechanism 550. Exhaust air stream 180 exits housing 502 as a substantially straight vector air flow with velocity V₁ and intensity characteristics as shown, for example, in FIG. 1A.

An air passageway 560 may be defined between an inlet (e.g., EW) and an outlet (e.g., AW) of the intensity adjustment mechanism 550. In one embodiment, air passageway 560 may end at the distal or forward end of the movable panels 554 a, 554 b, 554 c and 554 d, and in an another embodiment air passageway 560 may include outlet grill 510. As shown in FIG. 5A, air passageway 560 includes a straight or constant cross-sectional area. Further, air passageway 560 may include a plurality of sub-passageways separated by movable panels 554 a, 554 b, 554 c and 554 d.

FIG. 5B is structurally similar to FIG. 5A except movable panels 554 a, 554 b, 554 c and 554 d have moved and are shown as non-parallel and divergent relative to one another. The divergent alignment of movable panels 554 a, 554 b, 554 c and 554 d increase the width of exhaust air steam 180 as it exits housing 502 to air width “AW2” as compared to air width “AW1” of FIG. 5A. It can be seen that air width “AW2” is substantially greater than entry width “EW” of exhaust air stream 180 as it enters intensity adjustment mechanism 550. Exhaust air stream 180 exits housing 502 as a divergent air flow with velocity V₂ and intensity characteristics as shown, for example, in FIG. 1B. As can be appreciated, V₁ is greater than V₂.

The movement of intensity adjustment mechanism 550 may be effected by a rotation of movable panels 554 a, 554 c, 554 c and 554 d about pivot points 555. In the exemplary embodiment movable panels 554 a and 554 b rotate as a pair in a divergent fashion with respect to the second pair of movable panels 554 c and 554 d. When movable panels 554 a, 554 b, 554 c an 554 d are adjusted, as shown in FIG. 5B, exhaust air stream 180 exits through a substantial portion of the overall width of outlet grill 510.

As shown in FIG. 5B, air passageway 560 may include an increasing cross-sectional area forming a diverging air passageway from the air passageway inlet (e.g., EW) to the outlet (e.g., AW). Further, air passageway 560 may include a plurality of sub-passageways separated by movable panels 554 a, 554 b, 554 c and 554 d.

FIG. 5C is structurally similar to FIG. 5A except movable panels 554 a, 554 b, 554 c and 554 d have moved and are shown as non-parallel and convergent relative to one another. The convergent alignment of movable panels 554 a, 554 b, 554 c and 554 d decreases width of exhaust air steam 180 as it exits housing 502 to air width “AW3” as compared to air width “AW1” of FIG. 5A. It can be seen that air width “AW3” is less than entry width “EW” of exhaust air stream 180 as it enters intensity adjustment mechanism 550. Exhaust air stream 180 exits housing 502 as a convergent air flow with velocity V₃ and intensity characteristics different from those shown in FIGS. 1A and 1B.

As shown in FIG. 5C, air passageway 560 may include a decreasing cross-sectional area forming a converging air passageway from the air passageway inlet (e.g., EW) to the outlet (e.g., AW).

Although the exemplary embodiment of FIGS. 5A, 5B and 5C is shown using four movable panels 554 a, 554 b, 554 c and 554 d the invention is not so limited. It is contemplated that a combination of multiple movable and stationary movable panels may be used without departing from the spirit of the invention.

Outlet grill 510 may include inside edge 511 and grill elements 512, 513 and 514. Grill elements 512 and 514 located to either side of grill elements 513 may be divergent to one another and non-parallel to grill elements 513 located in the center of outlet grill 510. As can be appreciated, the divergent characteristics of grill elements 512 and 514 augment the divergent flow of exhaust air stream 180 when intensity adjustment mechanism 550 is adjusted as shown, for example, in FIG. 5B. Likewise, the parallel alignment of grill elements 513 relative to one another contribute to the substantially straight vector flow of exhaust air stream 180 when intensity adjustment mechanism 550 is adjusted as shown, for example, in FIGS. 5A and 5C.

Inside edge 511 of outlet grill 510 may be arcuate and follows the contour of movement of movable panels 554 a, 554 c, 554 c and 554 d when rotated about pivot points 555. The arcuate form of inside edge 511 enhances the ability of exhaust air stream 180 to exit housing 502 while at the same time impeding recirculation of exhaust air stream 180 back into interior space 503. The impedance of recirculation increases the efficiency and control of the flow characteristics of exhaust air stream 180 as it exits portable air moving device 500 with adjustable intensity air flow.

In one embodiment, intensity adjustment mechanism 550 changes the ratio of air width “AW” compared to entry width “EW”. In one embodiment the ratio of air width “AW” to entry width “EW” can be adjusted to greater than 1 to 1. In another embodiment the ratio of air width “AW” to entry width “EW” can be adjusted to less than 1 to 1. In another embodiment, the ratio of air width “AW” to entry width “EW” can be adjusted between less than 1 to 1 and greater than 1 to 1. In another embodiment, the ratio of air width “AW” to entry width “EW” can be adjusted between 0.5 to 1 and 3 to 1. In another embodiment the ratio of air width “AW” to entry width “EW” can be adjusted between 1 to 1 and 3 to 1. As can be appreciated, the variation of this ratio will alter the flow characteristics of exhaust air stream 180, such as for example, the flow velocity, the flow volume, the flow width and the air flow pattern. The adjustment of the ratio between air width “AW” to entry width “EW” will effect the area “A” of exhaust air stream 180 and subsequently the velocity V of exhaust air stream 180 and/or the air volume Q generated by blower assembly 530.

FIG. 6 shows yet another exemplary embodiment of portable air moving device 600 with adjustable intensity air flow. As shown, FIG. 6 is similar to the embodiments of FIGS. 1A and 1B. In lieu of the single exhaust air stream 180 of FIGS. 1A and 1B, portable air moving device 600 with adjustable intensity air flow of FIG. 6 shows two independently adjustable exhaust air streams 680 a and 680 b.

As shown, exhaust air stream 680 a exits housing 602 via a lower portion of air outlet 608 and outlet grill 610. Exhaust air stream 680 b exits housing 602 via an upper portion of outlet 608 and outlet grill 610 above exhaust air stream 680 a. Intensity adjustment mechanism 650 disposed within housing 602 includes lower portion 650 a and upper portion 650 b each independently controlled by adjustment knobs 652 a and 652 b respectively. As can be appreciated, the ability to adjust the intensity of exhaust air streams 680 a and 680 b independent of one another will further enhance the flexibility of use of portable air moving device with adjustable intensity air flow 600.

As shown, exhaust air stream 680 a exits housing 602 having air width “AW2” accompanied by the divergent flow characteristics of velocity “V₂” and a relatively low intensity. At the same time, exhaust air stream 680 b exits housing 602 having air width “AW1” accompanied by the straight vector flow characteristics of velocity “V₁” and a relatively high intensity. Adjustment knobs 652 a and 652 b can be used to independently adjust the air width of exhaust air stream 680 a and exhaust air stream 680 b anywhere between air width “AW1” and air width “AW2”.

Although portable air moving device with adjustable intensity air flow 600 is shown having two independently adjustable exhaust air streams 680 a and 680 b the invention is not so limited. It is contemplated that two or more independently adjustable exhaust air streams could be utilized without departing from the spirit of the invention. Although portable air moving device with adjustable intensity air flow 600 is shown having exhaust air stream 680 a below exhaust air stream 680 b, the invention is not so limited. It is contemplated that two independently adjustable exhaust air streams could be oriented horizontally, side by side without departing from the invention.

FIG. 7 is another exemplary embodiment of a portable air moving device with adjustable intensity air flow. As shown, heating element 790 may be fluidly connected to intensity adjustment mechanism 750. Intensity adjustment mechanism may include movable panels 754 a and 754 b. Movable panels 754 a and 754 b are moved relative to one another and thereby determine air width “AW”. As shown, “AW3” may be smaller than entry width “EW”. In the present example, air would flow first through heating element 790 and subsequently through intensity adjustment mechanism 750. Movable panels 754 a and 754 b may be moved outward in the direction of arrows 770 a and 770 b to adjust the size of air width “AW.” Air width “AW” may be greater than, equal to, or less than entry width “EW.” Movable panels 754 a and 754 b may move together or separately.

FIG. 8 is yet another exemplary embodiment of a portable air moving device with adjustable intensity air flow. Heating element 890 may be fluidly connected to intensity adjustment mechanism 850. As shown, intensity adjustment mechanism 850 may be of a cylindrical shape that can be rotated about axis of rotation 852. Intensity adjustment mechanism 850 may include movable panels 854 a, 854 b and 854 c. As shown, movable panels 854 a, 854 b and 854 c are angled relative to one another and may move with the rotation of intensity adjustment mechanism 850 about axis of rotation 852. The axial arrangement of multiple movable panels 854 a, 854 b and 854 c, as shown, defines an air flow channel through intensity adjustment mechanism 850. As shown air width “AW2” is wider than entry width “EW”. When intensity adjustment mechanism 850 is rotated around axis of rotation 852 about 180° from its present position, air width “AW” would be about equal to entry width “EW”. In the present example, air would flow first through heating element 890 and subsequently through intensity adjustment mechanism 850.

FIG. 9 is another exemplary embodiment of a portable air moving device with adjustable intensity air flow. Heating element 990, may be fluidly connected to intensity adjustment mechanism 950. Intensity adjustment mechanism 950 may include movable panels 954 a, 954 b, 954 c, 954 d and 954 e. As shown, movable panels 954 a, 954 b and 954 c may be substantially parallel relative to each other, while movable panels 954 d and 954 d may be angled away from each other. Movable panels 954 a, 954 b, 954 c, 954 d and 954 e may be moved by, for example, a lateral movement (see arrow 970) of intensity adjustment mechanism 950 relative to heating element 990 thereby determining air width “AW₂” or air width “AW₁”. As can be appreciated, the lateral position of intensity adjustment mechanism 950 relative to heating element 990 determines relative width of entry width “EW” to air width “AW”. In the present example, air would flow first through heating element 990 and subsequently through intensity adjustment mechanism 950.

FIG. 10 shows yet another exemplary embodiments of a portable air moving device with adjustable intensity air flow. As shown, heating element 1090 may be fluidly connected to intensity adjustment mechanism 1050. As shown, intensity adjustment mechanism 1050 may be a flat disc shape. Intensity adjustment mechanism 1050 may include multiple movable panels 1054 arrayed in a substantially circular pattern. The array of movable panels 1054 define aperture 1056. Aperture 1056 defines diameter “AD”. The movement of multiple movable panels 1054 relative to one another increases or decreases diameter “AD” of aperture 1056. The area of diameter “AD” relative to the area defined by entry width “EW” and entry length “EL” determines the flow characteristics of an air flow through intensity adjustment mechanism 1050. In the present example, air would flow first through heating element 1090 and subsequently through intensity adjustment mechanism 1050.

FIGS. 11A and 11B show another exemplary embodiment of a portable air moving device with adjustable intensity air flow. As shown, heating element 1190 may be fluidly connected to intensity adjustment mechanism 1150. Intensity adjustment mechanism may include movable panels 1154 a, 1154 b, 1154 c and 1154 d. Movable panels 1154 a, 1154 b, 1154 c and 1154 d may be moved relative to one another and thereby determine air width “AW”. As shown in FIG. 11A air width “AW1” is about equal to entry width “EW”. As shown in FIG. 11A air width “AW2” is greater than entry width “EW”. In another embodiment (not shown) panels 1154 a-1154 d may be positioned such that air width “AW” is less than entry width “EW.” In the present example, air would flow first through heating element 1190 and subsequently through intensity adjustment mechanism 1150.

As shown in the embodiment of FIGS. 11A and 11B, the movable panels 1154 a, 1154 b, 1154 c, and 1154 d may include flexible panels. Flexible panels 1154 a-1154 d may change shape when activated by air intensity adjustment mechanism 1150. As shown in FIGS. 11A and 11B, as points 1155 a, 1155 b, 1155 c, and 1155 d move by, for example, lateral movement (see arrows 1170 a and 1170 b) the flexible panels change shape thereby changing the air width “AW” of the air flow exiting the device. In FIG. 11A, the flexible panels 1154 a-1154 d have a straight or linear shape and define air width “AW₁”. In FIG. 11B, the flexible panels 1154 a-1154 d have moved and include a divergent shape defining air width “AW₂”. Alternatively, the flexible panels 1154 a-1154 d may have a convergent shape (not shown).

Although the exemplary embodiments of a portable air moving device with adjustable intensity air flow shown in FIG. 7 through FIG. 11B include a heating element the invention is not so limited. The absence of a heating element does not depart from the spirit of the invention.

FIGS. 12A, 12B and 12C are horizontal cross sectional views through an exemplary embodiment of portable air moving device 1200 with adjustable intensity air flow. Portable air moving device 1200 with adjustable intensity air flow is structurally similar to portable air moving device 400 with adjustable intensity air flow of FIGS. 4A and 4B. Portable air moving device 1200 with adjustable intensity air flow however shows intensity adjustment mechanism 1250 as opposed to intensity adjustment mechanism 450 of FIGS. 4A and 4B.

Intensity adjustment mechanism 1250 includes movable panels 1254 a, 1254 b, 1254 c, 1254 d, side frame 1256 a, and side frame 1256 b. As shown in FIG. 12A, movable panels 1254 a, 1254 b, 1254 c, 1254 d may be located so as to permit exhaust air steam 180 to exit housing 402 as a substantially straight single flow with velocity “V” and intensity characteristics as shown, for example, in FIG. 1A.

FIG. 12B is similar to FIG. 12A except movable panels 1254 a, 1254 b, 1254 c, 1254 d have moved and are shown redistributing exhaust air steam 180 across outlet grill 410 as non-parallel and divergent. The non-parallel and divergent flow of exhaust air steam 180 as it exits housing 402 will have velocity V and intensity characteristics similar to those shown, for example, in FIG. 1B.

FIG. 12C is similar to FIG. 12A except movable panels 1254 a, 1254 b, 1254 c, 1254 d have moved and are shown redistributing exhaust air steam 180 as two distinct flows located at opposite ends of air outlet 408 and outlet grill 410.

The movement of intensity adjustment mechanism 1250 may be effected by a circumferential movement of movable panels 1254 a, 1254 b, 1254 c, 1254 d along the form of outlet grill 410. Although the exemplary embodiment of FIGS. 12A, 12B and 12C is shown using four movable panels 1254 a, 1254 b, 1254 c, 1254 d the invention is not so limited. It is contemplated that a combination of two or more movable panels may be used without departing from the spirit of the invention.

In the embodiment shown in FIGS. 12A, 12B and 12C, intensity adjustment mechanism 1250 may maintain the ratio of air width “AW₁” compared to entry width “EW” throughout the relocation of movable panels 1254 a, 1254 b, 1254 c, 1254 d relative to one another. Although the flow characteristics of exhaust air steam 180 changes as movable panels 1254 a, 1254 b, 1254 c, and 1254 d are relocated relative to one another and air width “AW₂” is divided into multiple widths, the ratio of air width “AW₂” compared to entry width “EW” may remain substantially the same as the ratio of air width “AW₁” to entry width “EW”. The velocity and volume characteristics of exhaust air steam 180 may be substantially maintained while the width of exhaust air steam 180, as perceived by the user is changed.

FIGS. 13A, 13B, 13C and 13D are views of another exemplary embodiment of portable air moving device 1300 with adjustable intensity air flow. FIG. 13A is a horizontal cross sectional view through housing 1302 which defines interior space 1304. Air outlet 1308 and outlet grill 1310 are located in housing 1302. Also shown is intensity adjustment mechanism 1350 including movable panels 1354 a and 1354 b. Movable panel 1354 a includes closure wall 1351 and closure pivot 1352. Movable panel 1354 b includes side wall 1358, side pivot 1355, upper and lower walls 1356/1357 and side outlet 1359. As shown, movable panels 1354 a and 1354 b are duplicated on both sides of air outlet 1308 and outlet grill 1310.

Interior space 1304 serves as a plenum for pressurized air 1380. Pressurized air 1380 exits housing 1302 via air outlet 1308 and outlet grill 1310 as exhaust air steam 180. As shown in FIG. 13A, exhaust air stream 180 is a substantially narrow and straight vector air flow pattern “AW1”.

FIG. 13B is a cross sectional view through housing 1302 similar to FIG. 13A except the location of movable panels 1354 a and 1354 b of intensity adjustment mechanism 1350 have been relocated relative to each other. As can be seen, movable panels 1354 a have been relocated to impede the passage of pressurized air 1380 through air outlet 1308 and outlet grill 1310. Movable panels 1354 b have been relocated to allow a portion of pressurized air 1380 to exit interior space 1304 through side outlets 1359. As can be appreciated exhaust air stream 180 is a wide divergent air flow pattern “AW2”.

Pressurized air 1380 may be generated by a blower assembly (not shown in FIGS. 13A and 13B) drawing air into housing 1302. In one embodiment, the blower assembly may be a centrifugal type blower in direct fluid communication with interior space 1304.

FIGS. 13C and 13D are perspective views of air moving device 1300 with adjustable intensity air flow. FIG. 13C shows side walls 1358 in location relative to one another similar to FIG. 13A. As shown in FIG. 13C, exhaust air stream 180 has a substantially narrow and straight vector air flow pattern “AW1”. FIG. 13D shows side walls 1358 in a location relative to one another similar to FIG. 13B. As shown in FIG. 13 D, exhaust air stream 180 has a wide divergent air flow pattern “AW2”.

FIGS. 14A and 14B are horizontal cross sectional views through another exemplary embodiment of portable air moving device 1400 with adjustable intensity air flow. As shown, portable air moving device 1400 with adjustable intensity air flow includes housing 1402 defining interior space 1403. Disposed within interior space 1403 are blower assembly 1430, electric heating element 1490 and intensity adjustment mechanism 1450. Air inlet 1420 in this exemplary embodiment is located in housing 1402 opposite air outlet 1408. Outlet grill 1410 is located proximate air outlet 1408. As shown, outlet grill 1410 is constructed of perforated metal.

Referring now to FIG. 14A, blower assembly 1430 includes impeller 1432 and motor 1436. As can be seen impeller 1432 in this exemplary embodiment is an axial flow impeller. The rotation of impeller 1432 induces ambient air 182 to enter interior space 1403. Impeller 1432 converts ambient air flow 182 into exhaust air stream 180. Exhaust air stream 180 passes through cowling 1438 and in turn passes through electric heating element 1490. Exhaust air stream 180 subsequently passes through intensity adjustment mechanism 1450, air outlet 1408 and outlet grill 1410.

Intensity adjustment mechanism 1450 includes movable panels 1454 a, 1454 b, 1454 c, 1454 d. As shown in FIG. 14A, movable panels 1454 a, 1454 b, 1454 c and 1454 d are substantially parallel to one another. The substantially parallel alignment of movable panels 1454 a, 1454 b, 1454 c and 1454 d limit air width “AW1” of exhaust air steam 180 as it exits housing 1402. As can be appreciated, exhaust air stream 180 exits housing 1402 as a substantially straight vector air flow with velocity “V1” and intensity characteristics as shown, for example, in FIG. 1A.

FIG. 14B is similar to FIG. 14A except movable panels 1454 a, 1454 b, 1454 c and 1454 d have moved and are shown as non-parallel and divergent relative to one another. The divergent alignment of movable panels 1454 a, 1454 b, 1454 c and 1454 d increase the width of exhaust air steam 180 as it exits housing 1402 to air width “AW2”. Exhaust air stream 180 exits housing 1402 as a divergent air flow with velocity “V2” and intensity characteristics as shown, for example, in FIG. 1B.

FIGS. 15A, 15B, 15C and 15D are perspective views of another embodiment of portable air moving device 1500 with adjustable intensity air flow. As shown, housing 1502 defines interior space 1503. Air inlet 1520 allows ambient air to enter interior space 1503 and air outlet 1508 allows exhaust air stream 180 to exit interior space 1503.

Disposed within interior space 1503 is blower assembly 1530. Blower assembly 1530 draws ambient air into interior space 1503 via air inlet 1520 and subsequently generates exhaust air stream 180. Exhaust air stream 180 exits housing 1502 via air outlet 1508 and passes through intensity adjustment mechanism 1550.

As shown in FIG. 15A, intensity adjustment mechanism 1550 may be located on the exterior to housing 1502 proximate air outlet 1508. As can be appreciated, exhaust air stream 180 exits intensity adjustment mechanism 1550 through opening 1552 as a substantially straight vector air flow with velocity “V1” and intensity characteristics as shown, for example, in FIG. 1A. The width of exhaust air stream 180 as it exits intensity adjustment mechanism 1550 is represented by air width “AW1”.

Referring now to FIG. 15B, intensity adjustment mechanism 1550 may be removed from housing 1502 and rotated about 180°. Also shown is air outlet 1508 and outlet grill 1510. After rotation the perspective view of portable air moving device 1500 with adjustable intensity air flow may be re-oriented with respect to housing 1502, as shown in FIG. 15C.

FIG. 15C shows intensity adjustment mechanism 1550 including panels 1554 a, 1554 b, 1554 c, side frame 1556 a, side frame 1556 b, top frame 1557, bottom frame 1558. Panels 1554 a, 1554 b, and 1554 c diverge relative to one another.

Referring now to FIG. 15D, intensity adjustment mechanism 1550 may be re-attached to the exterior of housing 1502. As can be appreciated, exhaust air stream 180 exits intensity adjustment mechanism 1550 as a substantially wide and divergent air flow with velocity “V2” and intensity characteristics as shown, for example, in FIG. 1B. The width of exhaust air stream 180 as it exits intensity adjustment mechanism 1550 is represented by air width “AW2”.

Intensity adjustment mechanism 1550 may be detachably coupled to housing 1502 by conventional means, such as for example, snaps, press fits, clips, hook and loop materials and the like. Although intensity adjustment mechanism 1550 has been shown in FIGS. 15A-15D as a non-unitary part attached to the exterior of housing 1502 the invention is not so limited. It is contemplated that intensity adjustment mechanism 1550 may be a non-unitary part that can be inserted and removed from interior space 1503 of housing 1502.

As described, portable air moving device 100 with adjustable intensity air flow can adjust the air width of exhaust air stream 180 between a substantially narrow and straight vector air flow pattern having a relatively high intensity and a wide divergent air flow pattern having a relatively low intensity, or an air width “AW” between “AW₁” and “AW₂”. The air width of exhaust air stream 180 can also be adjusted to a converged air flow pattern “AW3” (see FIG. 5C). The adjustability promotes the variable intensity of exhaust air stream 180 experienced by the user. This variable intensity is not found in conventional portable air moving devices.

The narrow and substantially straight vector flow of exhaust air stream 180 enhances the ability of the heating or cooling effects of exhaust air stream 180 to efficiently penetrate a room or area, in turn allowing the user to experience a more intense cooling or heating sensation. The wider dispersed flow of exhaust air stream 180 allows the user to lessen the intensity and effects. The flexibility to adjust exhaust air stream 180 from a straight vector to a wide dispersed air pattern increases application flexibility afforded the user by portable air moving device 100 with adjustable intensity air flow.

Although the invention has been described with reference to exemplary embodiments, it is not limited thereto. Rather, the appended claims should be construed to include other variants and embodiments of the invention, which may be made by those skilled in the art without departing from the true spirit and scope of the present invention. 

1. A portable air moving device having a variable intensity air stream comprising: a housing defining an interior space; an air inlet in said housing; an air outlet in said housing; an air blower disposed in said interior space and in fluid communication with said air inlet and said air outlet, said air blower comprising; a motor; an impeller rotatably coupled to said motor; an inlet air flow induced by rotation of said air blower, said inlet air flow entering said housing via said air inlet and flowing to said impeller an exhaust air stream being discharged from said impeller and exiting said housing via said air outlet; flow characteristics of said exhaust air stream exiting said housing comprising; a flow velocity; a flow volume; an air width; an air length; an air flow pattern; an intensity adjustment mechanism disposed proximate said air outlet, said intensity adjustment mechanism comprising; movable panels; a variable position of said movable panels relative to one another; and a flow through area defined by said variable position of said movable panels; wherein at least one of said flow characteristics of said air flow exiting said housing is determined by said intensity adjustment mechanism in response to a change of said variable position of said movable panels relative to one another and/or said flow through area.
 2. The portable air moving device of claim 1, further comprising a heating element disposed between said air blower and said intensity adjustment mechanism.
 3. The portable air moving device of claim 1, wherein said air flow pattern further comprises a straight vector air flow and a divergent air flow.
 4. The portable air moving device of claim 1, wherein said flow through area further comprises an entry width “EW” and an air width “AW” and a ratio of said “AW” to said “EW” can be adjusted to greater than 1 to
 1. 5. The portable air moving device of claim 1, wherein said flow through area further comprises an entry width “EW” and an air width “AW” and a ratio of said “AW” to said “EW” can be adjusted to less than 1 to
 1. 6. The portable air moving device of claim 1, wherein said flow through area further comprises an entry width “EW” and an air width “AW” and a ratio of said “AW” to said “EW” remains substantially unchanged when said movable panels are repositioned relative to one another.
 7. The portable air moving device of claim 1, wherein said intensity adjustment mechanism is located between said air blower and said air outlet.
 8. The portable air moving device of claim 1, further comprising an outlet grill disposed adjacent said air outlet wherein said intensity adjustment mechanism is located between said air blower and said outlet grill.
 9. The portable air moving device of claim 1, wherein said impeller further comprises an axial flow impeller.
 10. The portable air moving device of claim 1, further comprising a single knob, slide and/or wheel wherein said movable panels all move relative to one another with an adjustment of said single knob, slide and/or wheel.
 11. The portable air moving device of claim 10, further comprising at least two sets of movable panels and each said sets of movable panels has a corresponding single knob, slide and/or wheel wherein each of said sets of movable panels move independently of the other said sets of movable panels with an adjustment of said corresponding single knob, slide and/or wheel.
 12. The portable air moving device of claim 1, wherein said movable panels further comprise at least one side wall and at least one side outlet, wherein said side wall moves to allow at least a portion of said exhaust air stream to discharge from said housing through said side outlet.
 13. The portable air moving device of claim 12, further comprising at least one closure wall wherein said closure wall moves to impede at least a portion of said exhaust air stream from discharging from said housing through said air outlet.
 14. An air flow intensity adjustment mechanism for use with a portable air moving device comprising: movable panels; and a position of said movable panels defining a flow through area of said intensity adjustment mechanism; wherein flow characteristics of an air flow produced by said portable air moving device are changed by a repositioning of said movable panels, thereby increasing and/or decreasing the flow through area of said intensity adjustment mechanism.
 15. The air flow intensity adjustment mechanism of claim 14, wherein said flow characteristics further comprise: an air width of said air flow; an air length of said air flow existing said housing; an air flow pattern being one of a straight vector air flow and/or a divergent air flow; a flow velocity; and a flow volume.
 16. The air flow intensity adjustment mechanism of claim 14, wherein said air flow intensity adjustment mechanism is detachably coupled to said portable air moving device.
 17. The air flow intensity adjustment mechanism of claim 14, wherein said portable air moving device further comprises a heating element imparting thermal energy to said exhaust air stream.
 18. The air flow intensity adjustment mechanism of claim 14, further comprising a flow through area having an entry width “EW” and an air width “AW”, wherein said air flow passes through said air flow intensity adjustment mechanism from said entry width “EW” to said air width “AW”, and a ratio of said “AW” to said “EW” can be adjusted to greater than 1 to
 1. 19. The air flow intensity adjustment mechanism of claim 14, further comprising a flow through area having an entry width “EW” and an air width “AW”, wherein said air flow passes through said air flow intensity adjustment mechanism from said entry width “EW” to said air width “AW”, and a ratio of said “AW” to said “EW” can be adjusted to less than 1 to
 1. 20. The air flow intensity adjustment mechanism of claim 14, wherein said position of said movable panels further comprises a variable position of said movable panels relative to one another.
 21. The air flow intensity adjustment mechanism of claim 20, further comprising a single knob, slide and/or wheel wherein said variable position of said movable panels move in response to an adjustment of said single knob, slide and/or wheel.
 22. The air flow intensity adjustment mechanism of claim 14, further comprising an outlet grill wherein said exhaust air stream first passes through said movable panels and subsequently through said outlet grill.
 23. The air flow intensity adjustment mechanism of claim 14, wherein said portable air moving device further comprises one of: an axial flow impeller, a centrifugal flow impeller and/or a transverse flow impeller.
 24. A portable air moving device having an exhaust air stream intensity adjustment mechanism for varying the intensity of an exhaust air stream exiting the air moving device, said portable air moving device comprising: a housing; a interior space defined within said housing; an air inlet fluidly connecting an exterior of said housing to said interior space; an air outlet fluidly connecting said interior space to said exterior of said housing; an air blower disposed within said housing, said air blower in fluid communication with said air inlet and said air outlet, wherein said air blower induces a flow of ambient air from said exterior of said housing into said air blower, imparts energy to said air flow, and subsequently discharges an exhaust air stream through said air outlet; and an air intensity adjustment mechanism proximate said air outlet, wherein said air intensity adjustment mechanism can adjust an air width “AW” of said exhaust air stream exiting said housing thereby varying an air flow intensity of said exhaust air stream exiting said housing and experienced by a user.
 25. The device of claim 24, wherein said air intensity adjustment mechanism can adjust said air width “AW” between a minimum air width “AW_(min)” and a maximum air width “AW_(max)”, wherein said minimum air width “AW_(min)” produces a relatively high intensity air flow and said maximum air width “AW_(max)” to produce a relatively low intensity air flow.
 26. The device of claim 25, wherein said air intensity adjustment mechanism can adjust said air width “AW” to a plurality of settings between said minimum air width “AW_(min)” and said maximum air width “AW_(max)”.
 27. The device of claim 24, further comprising an entry width “EW” of said exhaust air stream entering said air intensity adjustment mechanism, wherein said air width “AW” is adjustable to an air width “AW” that is substantially equal to said entry width “EW,” resulting in a narrow and substantially straight vector air flow pattern exiting said air outlet, said narrow and substantially straight vector exhaust air stream having a relatively high air flow intensity.
 28. The device of claim 27, wherein said narrow and substantially straight vector air flow pattern further comprises a first angle φ₁, said first angle φ₁ comprising an angle between −5 degrees and +5 degrees.
 29. The device of claim 24, further comprising an entry width “EW” of said exhaust air stream entering said air intensity adjustment mechanism, wherein said air width “AW” is adjustable to an air width “AW” that is greater than said entry width “EW,” resulting in a wider divergent air flow pattern exiting said air outlet, said wider divergent exhaust air stream having a relatively low air flow intensity.
 30. The device of claim 29, wherein said wider divergent air flow pattern further comprises a second angle φ₂, said second angle φ₂ comprising an angle greater than about 30 degrees.
 31. The device of claim 24, further comprising an entry width “EW” of said exhaust air stream entering said air intensity adjustment mechanism, wherein said air width “AW” is adjustable to an air width “AW” that is less than said entry width “EW,” resulting in a narrow convergent air flow pattern exiting said air outlet.
 32. The device of claim 24, wherein said air intensity adjustment mechanism can adjust said air width “AW” to a minimum air width “AW_(min)” resulting in an exhaust air stream having a narrow and substantially straight vector air flow pattern having a high air flow intensity that enhances the ability of said exhaust air stream to penetrate a room or area.
 33. The device of claim 24, wherein said air intensity adjustment mechanism can adjust said air width “AW” to a maximum air width “AW_(max)” resulting in an exhaust air stream having a wide and divergent air flow pattern having a low air flow intensity that reduces disruptive characteristics of said air moving device.
 34. The device of claim 24, wherein said air flow intensity of said exhaust air stream exiting said air moving device is increased by decreasing said air width “AW” using said air intensity adjustment mechanism, and said air flow intensity of said exhaust air stream is decreased by increasing said air width “AW” using said air intensity adjustment mechanism.
 35. The device of claim 24, wherein said air flow intensity of said exhaust air stream further comprises a velocity of said exhaust air stream.
 36. The device of claim 24, further comprising an air flow pattern of said exhaust air stream exiting said air moving device, wherein said air flow pattern is adjustable between a divergent air flow and a linear air flow.
 37. The device of claim 24, further comprising an air flow pattern of said exhaust air stream exiting said air moving device, wherein said air flow pattern is adjustable between a divergent air flow, a linear air flow, and a convergent air flow.
 38. The device of claim 24, wherein said air intensity adjustment mechanism further comprises movable panels, wherein movement of said movable panels results in adjustment of said air width “AW”.
 39. The device of claim 38, further comprising pivot points, wherein said movable panels pivot about said pivot points to adjust said air width “AW”.
 40. The device of claim 38, wherein said movable panels are movable between one or more of: a parallel position with respect to one another; a divergent position with respect to one another; and a convergent position with respect to one another.
 41. The device of claim 38, wherein said movable panels further comprise movable panels that slide laterally with respect to one another, wherein said lateral movement of said movable panels adjusts said air width “AW”.
 42. The device of claim 38, wherein said movable panels further comprise: movable panels mounted in a cylindrical shape housing at an angle relative to one another, said cylindrical shape housing having a substantially vertical axis of rotation; air flow channels defined between said movable panels, said air flow channels having a varying width from a first side of said cylindrical shape housing to an opposite, second side of said cylindrical shape housing; wherein rotation of said cylindrical shape housing about said axis of rotation adjusts said air width “AW”.
 43. The device of claim 38, wherein said movable panels further comprise: a first set of movable panels oriented substantially parallel to one another and defining a first air width “AW1”; and a second set of movable panels oriented at an angle to one another and substantially divergent and defining a second air width “AW2”; wherein said air intensity adjustment mechanism allows movement of said first set of movable panels and said second set of movable panels such that only one of said first or second set of movable panels is in fluid communication with said exhaust air stream, wherein said first set of movable panels produces a narrow, substantially straight vector air flow pattern, and wherein said second set of movable panels produces a wide, divergent air flow pattern.
 44. The device of claim 38, wherein said movable panels further comprise flexible panels, wherein a shape of said flexible panels changes in response to adjustment of said air intensity adjustment mechanism, and wherein said change of shape of said flexible panels results in adjustment of said air width “AW”.
 45. The device of claim 38, wherein said air intensity adjustment mechanism further comprises: a slide extending to said exterior of said housing; and linkage connecting said slide to said movable panels, wherein movement of said slide is translated into movement of said movable panels through said linkage to effect a change in said air width “AW”.
 46. The device of claim 38, wherein said movable panels further comprise: circumferentially oriented movable panels positioned proximate said air outlet; said movable panels being movable circumferentially with respect to said air outlet and with respect to one another; a first position wherein said movable panels are moved circumferentially outward providing an opening in a center region of said air outlet for said exhaust air stream to exit said housing as a narrow, substantially straight vector air flow pattern; and a second position wherein said movable panels are moved circumferentially to be equally spaced from adjacent movable panels providing a plurality of openings evenly spaced over said air outlet for said exhaust air stream to exit said housing as a wide, diffuse air flow pattern.
 47. The device of claim 46, wherein said movable panels further comprise: a third position wherein said movable panels are moved circumferentially inward providing an opening in opposite side regions of said air outlet for said exhaust air stream to exit said housing as two separate and divergent air flows.
 48. The device of claim 24, further comprising an outlet grill located over said air outlet, wherein said outlet grill comprises: an arcuate inside edge, wherein said arcuate inside edge is in close proximity to an outlet of said air intensity adjustment mechanism; a plurality of straight grill elements located in a center region of said outlet grill; and a plurality of divergent grill elements located on sides of said outlet grill.
 49. The device of claim 24, wherein said air intensity adjustment mechanism further comprises: a top frame; a bottom frame; and side frames extending between said top frame and said bottom frame, wherein said frames define a boundary of said air intensity adjustment mechanism.
 50. The device of claim 49, wherein said side frames further comprise movable panels.
 51. The device of claim 24, wherein said air blower further comprises an axial flow impeller.
 52. The device of claim 24, wherein said intensity adjustment mechanism is located between said air blower and said air outlet.
 53. The device of claim 24, further comprising a heating element disposed between said air blower and said air intensity adjustment mechanism, wherein said exhaust air stream flow from said air blower, through said heating element, and into said air intensity adjustment mechanism.
 54. The device of claim 24, further comprising: a plurality of exhaust air streams exiting said air moving device; a plurality of air intensity adjustment mechanisms, wherein each of said plurality of exhaust air streams is controlled by an independent air intensity adjustment mechanism.
 55. The device of claim 24, wherein said air intensity adjustment mechanism further comprising: an entry width “EW” at an inlet to said air intensity adjustment mechanism; said air width “AW” at an outlet to said air intensity adjustment mechanism; and an adjustable air passageway extending from said inlet of said air intensity adjustment mechanism to said outlet of said air intensity adjustment mechanism, wherein said air width “AW is adjustable with respect to said entry width “EW”.
 56. The device of claim 55, wherein said adjustable air passageway is adjustable to increase or decrease a cross-sectional area of said air width “AW” with respect to a cross-sectional area of said entry width “EW”. 